in all honesty id chunk that stuff and look into glasscutters. They make in tank overflows but it requires you to drill the back side of the tank. had a buddy order one for his 58 and its pretty damn nice.

in all honesty id chunk that stuff and look into glasscutters. They make in tank overflows but it requires you to drill the back side of the tank. had a buddy order one for his 58 and its pretty damn nice.

Edit: sorry its glassholes. Dont know why I thought glasscutters lol

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If only it were that simple. I don't know how difficult it would be to do this with the tank up and running but I am sure it would be a HUGE undertaking.

If my next tank is not pre-drilled, I will definitely be drilling my own.

Is the air coimng from the intake end?
Are you evacuating the air to start the siphon with a pice of 1/4: lind ran up thru one end and sucking the air out?

If it continues to get air in the U tube- BIG Trouble.
I hope you have a shut off for the DT getting too high of water level- or you will be mopping up water.

Sometimes adjusting the intake box hdight will help. Are the bubbles getting sucked in from the inside box?
I faster moving flow thru the tube will often suck the bubbles thru too.

And has as been said, you may have a hairline crack in the U tube.
Stay off the crack! ;-)

When I had my 125 running as my DT, I had my own, elaborate, intank surface skimming HOB siphon style overflow. It was made of PVC- and never had leaks of cracks. It's history now though with my current set up.

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